| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000388942 |
| ISSN: | 0035-001X |
| Authors: | Fernández Piedra, O. Pavel1 Bernal Castillo, Jaime1 Sosa Núñez, F1 Jiménez Santana, Y1 |
| Institutions: | 1Universidad de Cienfuegos, Grupo de Estudios Avanzados, Cienfuegos. Cuba |
| Year: | 2015 |
| Season: | Nov-Dic |
| Volumen: | 61 |
| Number: | 6 |
| Pages: | 400-413 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | In this report we present results concerning the study of complete time evolution of massless fermion perturbations propagating in several four dimensional regular black hole space-times. The black hole solution arises from coupling gravity with external matter sources, like nonlinear electrodynamics or some phantom fields. After numerical integration we obtain the time evolution profiles for fermion fields in this space-times. By fitting the numerical data, we compute the quasinormal frequencies that characterize the test field evolution at intermediary times, and for late times, we find power law tails, in strong similarity with usual results for non regular black holes. Quasinormal modes was also investigated using a WKB approach at six order beyond the eikonal limit, obtaining a good correspondence with the numerical calculated frequencies |
| Disciplines: | Física y astronomía, Matemáticas |
| Keyword: | Física, Matemáticas aplicadas, Hoyos negros, Perturbaciones espinoriales, Campo de Dirac |
| Keyword: | Physics and astronomy, Mathematics, Physics, Applied mathematics, Black holes, Spinor perturbations, Dirac field |
| Full text: | Texto completo (Ver PDF) |
